﻿/*
 *
 * DX_SourceOutliner
 * Copyright (C)2009
 * http://code.google.com/p/dxcsourceoutliner
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace DX_SourceOutliner
{
    internal class TreeNodeProcessor
    {
        public IEnumerable<TreeNode> GetAllNodes(TreeNodeCollection nodes)
        {
            IList<TreeNode> results = new List<TreeNode>();

            foreach (TreeNode node in nodes)
            {
                results.Add(node);
            }

            return GetAllNodesWithChildren(results);
        }

        public IEnumerable<TreeNode> GetAllNodesWithChildren(IEnumerable<TreeNode> nodes)
        {
            IList<TreeNode> results = new List<TreeNode>();

            foreach (TreeNode node in nodes)
            {
                results.Add(node);
                foreach (TreeNode childNode in GetChildNodes(node))
                {
                    results.Add(childNode);
                }
            }

            return results;
        }

        private IEnumerable<TreeNode> GetChildNodes(TreeNode parent)
        {
            IList<TreeNode> results = new List<TreeNode>();

            foreach (TreeNode node in parent.Nodes)
            {
                results.Add(node);

                foreach (TreeNode childNode in GetChildNodes(node))
                {
                    results.Add(childNode);
                }

            }

            return results;
        }
    }
}
